Bluemix - Watson - Speech-to-Text
The IBM Watson Speech to Text service uses speech recognition capabilities to convert Arabic, English, Spanish, French, Brazilian Portuguese, Japanese, and Mandarin speech into text.
Demo
https://speech-to-text-demo.mybluemix.net/
Documents
https://www.ibm.com/watson/developercloud/doc/speech-to-text/index.html
SDK
https://github.com/watson-developer-cloud/unity-sdk/releases/tag/0.13.0
Notes
3 Interfaces
WebSocket
HTTP Rest
Async HTTP Interface
Inputs:
Languages
Models
Audio Formats
Audio transmission
Outputs
Speaker Labels
Keyword Spotting
Word alternatives, confidence and timestamp
Maximum alternatives and interim results
Profanity filtering
Smart formatting